| 摘要 |
<p num="1"><br/><br/><br/>Rock drilling device including a rock drilling machine (1) which is movable <br/>forwards and backwards along a feed beam, (2 wherein the rock drilling machine <br/>(1) is pivotal around an axis (3) which is arranged along the rock drilling <br/>machine (1) , and a channel (4) for supply of lubricant to points of <br/>lubrication in the rock drilling machine (1) , wherein the channel (4) <br/>includes a sleeve (5) which is provided with a number of generally radial <br/>holes (6) that are distributed along the circumference of the sleeve (5) , <br/>that a groove (7) is arranged around the sleeve (5) in connection with the <br/>radial holes (6) , and that the radial holes (6) are dimensioned such that a <br/>part of the lubricant leaves the channel (4) through the radial holes (6) .<br/>
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